WHAT ARE FAT BURNERS?
Fat burners are drugs, herbs, nutritional supplements or blend of these things that increase the amount of heat produced within the human body. Fat burners are also advertised as ?thermogenics? or appetite suppressants. These products can facilitate weight loss by increasing metabolism, boosting energy, target body receptor cells and release stored fat. To maximize their effectiveness, combine ingredients that work synergistically to enhance both fat release and elimination.

Here, we break down the most popular fat-burning ingredients by their mode of action. Apart from cutting edges, it increases energy, improves mood, and even makes you stronger in the gym.

HOW DO FAT BURNERS WORK?
There is a variety of thermogenic supplements available, the most popular fat-burner by far is the classic ECA stack. ECA refers to ephedra-caffeine-aspirin. It is well accepted that these three agents work the best and the reason they are always combined (or stack together) are because they help each other work better. When one ingredient helps another ingredient work better this relationship is considered. Apparently fat burners increase the basal metabolic rate of the body and thereby increasing their energy expenditure (burning calories).

FAT RELEASERS
The body fat that you hold under your skin is stored in adipocytes, also known as fat cells. To lose body fat, these cells must be as small as possible, so you need to empty the fat cells of most of their contents. There are several ingredients that will increase the amount released from your fat cells.

Caffeine: In the classic or metabolic theory, caffeine may increase fat utilization and decrease glycogen utilization. Caffeine mobilizes free fatty acids from fat and/or intramuscular triglycerides by increasing circulating epinephrine levels. The increased availability of free fatty acids increases fat oxidation and spares muscle glycogen, thereby enhancing endurance performance. In the nervous system, caffeine may reduce the perception of effort by lowering the neuron activation threshold, making it easier to recruit the muscles for exercise.

Yohimbe: Oral yohimbine supplementation may actuate significant fat loss. Numerous bodybuilding supplementation companies sell formulations of yohimbine for transdermal delivery to affect a local reduction of adipose tissue.

CALORIE BURNERS
Just because supplements like caffeine and yohimbe help free up more fat from your fat cells, that doesn?t necessarily mean that it will be burned off for good. You also need to ramp up your calorie burn, which forces your body to use that freed-up fat as a fuel source.
These four ingredients will boost the number of calories your body burns, achieving that extra few pounds of weight loss.

Green Tea Extract: Green tea extracts stronger antioxidant protection for human body than vitamin C and vitamin E. Scavenging effect of lipid free-radicals (one antioxidant property) of polyphenols in green tea extracts can be clearly observed. The ability of GTP (Guanosine triphosphate) in green tea extracts to eliminate lipid-derived free radicals is noticeably stronger (almost 50 times) than that of ginkgo biloba extracts. Boosting level of superoxide dismutase (SOD) and glutathione dismutase (GSHPx) may account for the inhibitory effect of GTC against lipid oxidation (rancidification). It should be mentioned that from the antioxidant perspective, green tea extracts are, generally speaking, more effective than black tea extracts due to the better preservation of catechins.
Synephrine: Synephrine is one the active ingredients in the bitter orange plant (Citrus aurantium). Synephrine boosts metabolic rate (the number of calories you burn). Synephrine is currently marketed, usually in combinations with other drugs such as caffeine, as an over-the-counter stimulant and weight-loss-promoting dietary supplement for oral consumption.

Capsaicin: The effects of Capsaicin are said to cause ?a shift in substrate oxidation from carbohydrate to fat oxidation?. This leads to a decrease in appetite as well as a decrease in food intake. Capsaicin aids in the decrease of weight regain. A study from the University of Oklahoma found that subjects who took a supplement that combined both capsaicin and caffeine burned more calories both during exercise and afterward.

Olea Euporaea Extract: It is the scientific name of Olive Leaf Extract, and one of its most important ingredients is a chemical known as Oleuropein. It is a powerful antioxidant and as well research shows that it also boosts norepinephrine levels and therefore the amount of calories and fat burned.

FAT TRANSPORTER
With all that freed-up fat floating around, sometimes as increase in calorie burn isn?t enough to ensure that it all gets eliminated. This supplement can help to maximize the amount of fat transported to these energy centers.

Carnitine: It is a critical component of the complex transportation system that brings fat into the mitochondria, where it is burned completely. Some studies confirm that supplementing with carnitine increases the amount of fat burned by the body.

FAT STOPPER
Fat loss is a constant battle of burning off more than you store. So while it's a good idea to use supplements that free up and burn more fat, you should also consider using supplements that decrease the amount of fat your body stores in the first place.
Conjugated linoleic acid: This is a naturally occurring group of healthy fats that are specifically omega-6 fats. Numerous research studies confirm that CLA enhances fat loss while simultaneously boosting muscle growth and strength.

GENE ACTIVATORS
The more we learn about nutrition and nutritional supplements the more we realize the affect they have on our DNA. Research has shown that the following two ingredients directly influence the expression of the genes involved in fat burning.
Fucoxanthin: When taken as a supplement, this carotenoid turns on genes that increase the number of calories burned. It also turns off genes that increase fat-cell growth. Research in humans and animals shows that this increase in calorie burn and subsequent inhibition of fat-cell growth which leads to significant fat loss over time.

Fish Oil: This source of essential omega-3 fats provides both eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These omega-3 fats have been found to turn on genes that increase fat burning while turning off genes that decrease fat storage.

WHAT DO YOU WANT FROM YOUR FAT BURNER?
When trying to lose fat body type is very important to both diet and training. Different body types will require varying levels of calories, macronutrients, and training volumes. Before you can determine how much to eat and how much to train you must know your body type.

Different fat burners serve different purposes, so the first thing to decide is what you want your fat burner to do. What do you want to accomplish from using it? Do you want more energy? Do you want to suppress your appetite? Or, maybe you want to increase your metabolic rate so that you?re burning off more calories?

Whatever you want in a fat burner, it?s likely that there is something on the market to fit your expectations. If you can?t find one product that combines all the things you want for instance, maybe you want a single product with green tea extract for natural fat burning support, hoodia for appetite control, and caffeine for energy-then you may be able to buy individual supplements to fulfill your needs. Identify what you want in a fat burner before making your selection. Many fat burners are classified as ?stacked? products that contain a blend of numerous ingredients and are designed to target your energy levels, metabolism and appetite. So if you want broad spectrum fat loss support, a stacked product is the way to go.